All-polymeric cold mirror
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United States of America Patent
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Aug 16, 1994
Grant Date -
N/A
app pub date -
Oct 16, 1992
filing date -
Oct 16, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An all-polymeric cold mirror which reflects visible wavelengths while transmitting a substantial portion of infrared wavelengths is provided. The mirror includes a sufficient number of alternating layers of at least first and second diverse polymeric materials such that at least 50% of peak reflecting visible light of a wavelength of between about 380-680 nm incident on the mirror is reflected and at least 50% of infrared light between about 680-2000 nm is transmitted or absorbed. The mirror may be designed so that it either reflects or absorbs ultraviolet light.
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